Adjustable cantilever bracket



Patented Dec. 16, 1941 UNITED STATES] PATENT OFFICE ADJUSTABLECANTILEVER BRACKET Hartley H. Jackson and Leonard Milgram, v Y KansasCity, Kans.

Applicationjanuary 24, 1941,'seria1No. 375,832

3 Claims.

Our invention relates to an adjustable cantilever bracket. It has beenproposed to provide brackets to be-used for supporting shelving and thelike, many times. The constructions of the prior art have been oflimited strength and some of them have been diicult of manufacture.

One object of our invention is to provide an adjustable cantileverbracket which is at once light and strong, can be simply and cheaplymanufactured, and 4readily adjusted without the necessity of tools.

Other and further objects of our invention will appear from thefollowing description.

In the accompanying drawing which forms part of the instant specicationand is to be A `read in conjunction therewith and in which likereference numerals are used to indicate like parts Figure 4 isafsectional view taken 'on the line 4-4 of Figure 2.

Referring now to the drawing, the supporting member I is formed of achannel member having anges II and I2, and a web I3. The web Y I3 isformed with a plurality of cross shaped slots I4. The bracketl, per se,has a cross sectional shape of an angle iron, the vertical leg of which,I6, tapers outwardly from the support. IThe end of the leg I6 adjacentthe support Ill, is

formed with a bifurcation, comprising an upper member I'I'and av lowermember I8. A pair of pins IS `and 2n. are provided, as can readily beseen by reference to the drawing. The pin I9 is of a width suicient toenter the horizontal portion of the cross shaped slot I4. The pin 20 isof such length that it will span the `web I3 and contact theflanges IIand I2 of the supporting member I0. This can readily be seen byreference to Figure 4. Y Y

' The manner in whichthe bracket is inserted in the supporting member isreadily apparent from the drawing. The lower member I8 ts into thevertical portion of the cross shaped s lot just below the horizontalportion of the adjacent cross shape'dslot, immediately above. The pin I9enters the horizontal portion of the cross shaped slot. The bracket willthen be allowed to move downwardly until the lower edge ZI or the memberl1 contacts the base of the slot The turning moment is resisted 'bytheweb I3 and the flanges II and I2, due to the fact that the pin` 20 spansthe member I0 from web to Our bracket has many uses.v The supporting' vmember I0 may be secured against a wall or the like and the bracketsused to support shelving.

The supporting member II) may ,be in a` show case and the brackets maysupport steel shelving or the like. The brackets may be adjusted withoutany tools. vThey are strong and light, and yet inexpensive tomanufacture. Once adjusted, they are held rmly in position with aminimum danger, against displacement, by accidental blows. t f

It will be understood that certain features and subcombinations are ofutility and may be employed without' reference to other features andsub-combinations. This is contemplated by and is within the scope of ourclaims. It is further obvious that various changes may be made indetails within the scope of our claims without departing from the spiritof our invention. It

is, therefore, to be understood that our .invenslots, a bracket memberhaving an end formed with a pair of projecting lugs spaced to4 enter thevertical portions of a pair of said crossshaped slots, a pin extendingtransversely through the upper of said projecting lugs, said pin havinga length less than the length of the y horizontal portion of across-shaped slot, and a into which the pin I9 was tted. The pin I9contacts the rear side of the web I3, while the pin 2l! lies across thefront of the supporting member,

' 3. A support as in claim 1 in which said bracket is formed with avertical leg and a horizontal leg and said vertical legis taperedoutwardly and upwardly from adjacent said projecting lugs.

HARTLEY H. JACKSON. LEONARD MILGRAM.

